Reconfigurable band elimination filter
A band-stop filter and resistor technology, applied in impedance networks, electrical components, multi-terminal-pair networks, etc., can solve the problems of adjustable bandwidth/frequency, narrow notch bandwidth, wide tuning range, etc., and achieve high notch suppression. , narrow notch bandwidth, the effect of improving performance
Pending Publication Date: 2020-09-22
CHINA ELECTRONICS TECH GROUP CORP NO 16 INST
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Problems solved by technology
However, the existing adjustable band-stop filters often cannot meet the requirements of adjustable bandwidth / frequency point, high rejection, narrow notch bandwidth, and wide tuning range at the same time.
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[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0023] See figure 1 , a reconfigurable band-stop filter, including a substrate 1, sixteen resonators 2 and a main line 3 arranged on the substrate 1;
[0024] See figure 1 with figure 2 , sixteen resonators 2 are distributed in two rows on the substrate 1, the main line 3 is located between the two rows of resonators 2, and each resonator 2 includes a superconducting wire structure with a serpentine bend, and the main line 3 is composed of eight A bent sec...
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The invention discloses a reconfigurable band elimination filter, which comprises a substrate, a plurality of resonators and a main line, wherein the resonators and the main line are arranged on the substrate; the substrate comprises a substrate body, two layers of high-temperature superconducting YBa2Cu3O7-[delta] thin films arranged on the upper face and the lower face of the substrate body respectively, and gold films sputtered on the outer surfaces of the high-temperature superconducting YBa2Cu3O7-delta thin films in situ. The plurality of resonators are distributed in two rows on the substrate, the main line is located between the two rows of resonators, each resonator comprises a snakelike bent superconducting line structure, the main line is composed of a plurality of bent sectionsand a plurality of straight line sections, and each bent section of the main line is close to the upper resonator and the lower resonator to form coupling. According to the invention, a plurality of adjustable center frequency points can be realized, and the filter has the characteristics of the small size, the high suppression degree, the wide tuning range and the reconfigurable frequency point / bandwidth, and can be applied to microwave communication equipment.
Description
technical field [0001] The invention relates to the technical field of electronic components, in particular to a reconfigurable band rejection filter. Background technique [0002] The radio frequency filters widely used at present have the characteristics of non-adjustable and fixed functions. There are a large number of radio frequency filters with different indicators in the wireless communication system, which increases the complexity and size of the wireless communication system. If the radio frequency filter has tunable characteristics such as center frequency and bandwidth, the same radio frequency filter can be used to flexibly meet different indicators, which will help simplify the wireless communication system and greatly reduce the size. [0003] In order to make full use of the frequency spectrum, adjustable band-stop filters with narrow bandwidth and high rejection are needed in microwave communication systems to achieve flexible suppression of interference. Ho...
Claims
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Patent Timeline
Login to View More IPC IPC(8): H03H7/01H03H7/12
CPCH03H7/01H03H7/0123H03H7/12H03H7/17H03H2007/013H03H2007/0192
Inventor 刘洋
Owner CHINA ELECTRONICS TECH GROUP CORP NO 16 INST